Blown-in Attic Insulation vs. Traditional Batt Insulation

Envirotech Exteriors

Maintaining your home’s energy efficiency is crucial to ensure a comfortable living space and save on energy bills. It requires investing in insulation materials that reduce heat loss and regulate the temperature indoors. Two of the most common insulation types used in attics are blown-in attic insulation and traditional batt insulation. Both have their pros and cons, but choosing the best option depends on several factors, such as your budget, the size and shape of your attic, and your home’s heating and cooling needs.

In this blog post, will explore the disparities between blown-in attic insulation and conventional batt insulation.. We’ll also highlight the advantages and disadvantages of each method to help you make an informed decision. Envirotech Exteriors has years of experience in installing attic insulation and suggests considering blown-in insulation to boost your home’s energy efficiency while maximizing your investment.


Blown-In Attic Insulation:


Envirotech Exteriors

Blown-in insulation, also known as loose-fill insulation, consists of loose fibers that are blown into the attic space. The material can be made from various materials, such as cellulose, fiberglass, or mineral wool. The advantage of blown-in insulation is that it can easily conform to the shape and size of any attic space, including irregular spaces, pipes, and air ducts. It also provides better coverage and can reach areas that traditional batt insulation cannot. Another advantage of blown-in insulation is that it is more resistant to pests, as it contains a borate ingredient that repels rodents and insects.

However, blown-in insulation requires special equipment and experience to install, and it may be more expensive than traditional batt insulation. Also, over time, blown-in insulation may settle and lose its insulating properties, requiring periodic inspections and adjustments.


Traditional Batt Insulation:


Traditional Batt Insulation

Traditional batt insulation comes in large, pre-cut rolls or batts that are made of fiberglass, rock wool, or recycled materials. The material is placed between attic beams and is held in place by friction or staples. The advantage of traditional batt insulation is that it is easier to install and is less expensive than blown-in insulation. It is also less prone to settling over time, which means it requires less maintenance.

However, traditional batt insulation may not provide adequate coverage in areas with irregular shapes or obstacles, leaving gaps where air can escape. It may also be less resistant to pests, and rodents can chew through the fiberglass material and make nests in the insulation.


Other Factors to Consider:


When choosing between blown-in attic insulation and traditional batt insulation, several factors should be considered. The first is your budget and the size and shape of your attic. Installing blown-in insulation is more expensive but provides better coverage and more energy efficiency in the long run. Traditional batt insulation may be more affordable, but it may not provide the same level of coverage. The second factor is the R-value, which measures the insulation’s thermal resistance. The higher the R-value, the better the insulation’s resistance to heat flow. In general, the higher the R-value, the more energy-efficient your home will be.




Blown-in attic insulation and traditional batt insulation both have their advantages and disadvantages. The choice between the two depends on several factors, including your budget, attic size and shape, and energy efficiency needs. Envirotech Exteriors recommends considering blown-in insulation due to its better coverage and resistance to pests, which can result in greater energy efficiency over time. Nevertheless, both methods can improve your home’s insulation and energy efficiency, lower your energy bills, and provide a more comfortable living space. It’s essential to consult with a professional insulation contractor who can assess your needs and recommend the best insulation type for your home.


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